Home / 105,431.36-158,147.24-26,545.05

Finding the Fourth Proportional to 105,431.36, 158,147.24 and 26,545.05

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Solution

The fourth proportional to 105,431.36, 158,147.24 and 26,545.05 is: 39,817.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,431.36 : 158,147.24 = 26,545.05 : x
  2. Step 2: Convert to fraction form
    105,431.36/158,147.24 = 26,545.05/x
  3. Step 3: Cross multiply
    105,431.36x = 158,147.24 × 26,545.05
  4. Step 4: Simplify right side
    105,431.36x = 4,198,026,260.44
  5. Step 5: Solve for x
    x = 4,198,026,260.44/105,431.36
  6. Step 6: Final answer
    x = 39,817.63

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.